Volume 40.1 of the journal Textiles Progress, this book presents recent research on conjugate spinning techniques and developments in bicomponent spinning and electrospinning. It discusses the properties of microfibers affecting the downstream process and the processing of microfibers in blow room, carding, draw frame, speed frame, and ring frame. The book also explores alternative spinning technologies, such as open-end, air-jet, and compact spinning; weaving and knitting with microfibers, including projectile, rapier, and air-jet weaving; the reactions of microfibers to different hydrolysis environments that include alkaline, acid, and enzymes; and the dyeing of microfibers. Along with addressing fiber structure by critical dissolution time, the text presents various uses of microfibers in industrial, medical, apparel, and miscellaneous applications and discusses the economics and limitations of producing this fiber.